Figure 1 (IMAGE)

Pohang University of Science & Technology (POSTECH)

Figure 1

Caption

Schematic representation of Fe3GeTe2-based non-volatile memory prototype. Fe3GeTe2 is a ferromagnet, where its spins (little white arrows) align in the same direction. The orientation of the spins defines 1 or 0 binary bits. a) Initial state, where the information 0 is recorded. b) To write new information, a small current (orange arrow) is applied, which changes the material from a hard magnet to a soft magnet so that the stored information can be easily modified (say, from 0 to 1). c) Once the current is turned off, the material changes back to a hard magnet, and the information 1 written in the stage b) can be maintained for a long time without any external power supply, making it a non-volatile memory.

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POSTECH & SNU

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